| author | Pascal Volk <user@localhost.localdomain.org> |
| Fri, 20 Nov 2009 05:08:46 +0000 | |
| changeset 5 | 610fe1138532 |
| parent 4 | bc4d326e5a46 |
| permissions | -rw-r--r-- |
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#!/usr/bin/env python |
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# -*- coding: UTF-8 -*- |
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# Copyright 2009 Pascal Volk |
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# See COPYING for distribution information. |
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__author__ = 'Pascal Volk' |
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__version__ = '0.1' |
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__date__ = '2009-11-14' |
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""" |
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Sends information about uncaught exceptions per email. |
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""" |
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import sys |
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import smtplib |
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import traceback |
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from os import environ as env |
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from time import ctime, gmtime, localtime, strftime, time |
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error_page = """<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" |
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"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> |
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"> |
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<head> |
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<title>Internal Server Error</title> |
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> |
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</head> |
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<body> |
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<h1>Internal Server Error</h1> |
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<p>The server encountered an internal error and was unable to complete your |
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request.</p> |
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<p>The administration team will take care of this problem. We apologize |
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for any inconvenience.</p> |
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<h2>Error 500</h2> |
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<p>Server got itself in trouble</p> |
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</body> |
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</html>""" |
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error_page_is_xhtml = True |
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msg_body = """Hi, |
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an uncaught exception has occurred. The details are as follows: |
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Type: %(extype)s |
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Message: %(message)s |
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Traceback (most recent call last): |
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%(traceback)s |
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Additional information: |
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Date: %(date)s |
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Request: %(method)s %(uri)s %(protocol)s |
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Referrer: %(referer)s |
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Client: %(addr)s/%(port)s |
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U-Agent: %(agent)s |
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""" |
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msg_header = """Date: %(date)s |
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From: "%(from_name)s" <%(from_addr)s> |
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To: "%(rcpt_name)s" <%(rcpt_addr)s> |
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Subject: %(subject)s |
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Message-ID: <%(now)f.%(now)X@mailtb.%(host)s> |
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Auto-Submitted: auto-generated |
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MIME-Version: 1.0 |
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Content-Type: text/plain; charset=utf-8 |
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Content-Transfer-Encoding: 8bit |
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""" |
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config = {# sender information |
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'from_addr': '', |
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'from_name': '', |
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# smtp auth information (if necessary, else leave blank) |
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'auth_user': '', |
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'auth_pass': '', |
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# recipient information |
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'rcpt_addr': '', |
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'rcpt_name': '', |
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# smtp server information |
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'smtp_host': 'localhost', |
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'smtp_port': 25, # 25 smtp, 587 submission, 465 ssmtp (obsolete) |
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'smtp_tls': False, # True or False (use starttls on port 25/587) |
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# subject of the email |
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'subject': 'Exception Notification', |
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# make sure that the web server can write to this file |
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'error_log': '/tmp/mailtb_error.log' |
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} |
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http_status = {200: 'OK', |
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500: 'Internal Server Error'} |
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def log_mail_error(error, timestamp): |
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try: |
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prefix = strftime('%b %d %H:%M:%S', localtime(timestamp)) |
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line = error.message if len(error.message) else error.args |
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logfile = open(config['error_log'], 'a') |
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logfile.write('%s %s: %s\n' % (prefix, error.__class__.__name__, line)) |
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logfile.close() |
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except: |
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pass |
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def load_config(filename): |
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from ConfigParser import ConfigParser |
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cp = ConfigParser() |
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if len(cp.read(filename)): |
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global config |
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get = cp.get |
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for k in ('auth_pass', 'auth_user', 'error_log', 'from_addr', |
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'from_name', 'rcpt_addr', 'rcpt_name', 'smtp_host', 'subject'): |
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config[k] = get('mailtb', k) |
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config['smtp_port'] = cp.getint('mailtb', 'smtp_port') |
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config['smtp_tls'] = cp.getboolean('mailtb', 'smtp_tls') |
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108 |
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109 |
def send_header(status=500, xhtml=False): |
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110 |
s = status if status in http_status else 500 |
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111 |
write = sys.stdout.write |
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112 |
if not xhtml: |
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113 |
write('Content-Type: text/html; charset=utf-8\r\n') |
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114 |
else: |
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115 |
write('Content-Type: application/xhtml+xml; charset=utf-8\r\n') |
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116 |
write('Status: %d %s\r\n\r\n' % (s, http_status[s])) |
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117 |
sys.stdout.flush() |
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118 |
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119 |
def send_error_page(): |
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send_header(500, error_page_is_xhtml) |
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sys.stdout.write(error_page) |
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sys.stdout.flush() |
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123 |
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124 |
def send_mail(info): |
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125 |
global config |
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126 |
config['now'] = time() |
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config['host'] = info['host'] if info['host'] != 'n/a' else 'localhost' |
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config['date'] = strftime('%a, %d %b %Y %H:%M:%S +0000', |
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129 |
gmtime(config['now'])) |
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130 |
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131 |
try: |
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132 |
if config['smtp_port'] != 465: |
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133 |
smtp = smtplib.SMTP(config['smtp_host'], config['smtp_port']) |
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134 |
if config['smtp_tls']: |
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smtp.starttls() |
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136 |
else: |
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137 |
smtp = smtplib.SMTP_SSL(config['smtp_host'], config['smtp_port']) |
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138 |
if len(config['auth_user']) and len(config['auth_pass']): |
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139 |
smtp.login(config['auth_user'], config['auth_pass']) |
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140 |
smtp.sendmail(config['from_addr'], config['rcpt_addr'], |
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'\n'.join((msg_header %config, msg_body %info))) |
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142 |
except Exception, e: |
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143 |
# try to log it (fire and forget) |
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144 |
log_mail_error(e, config['now']) |
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145 |
finally: |
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146 |
smtp.quit() |
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147 |
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148 |
def mailtbhook(extype, exval, extb): |
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149 |
info = {} |
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150 |
if type(extype) is type: |
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info['extype'] = extype.__name__ |
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152 |
else: |
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153 |
info['extype'] = str(extype).split("'")[1] |
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154 |
if hasattr(exval, 'message'): |
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info['message'] = exval.message if len(exval.message) else 'n/a' |
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156 |
else: |
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157 |
info['message'] = str(exval) |
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158 |
info['traceback'] = ''.join(['%s\n' % l for l in traceback.format_tb(extb)]) |
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159 |
|
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160 |
info['date'] = ctime() |
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for k in ('HTTP_HOST', 'HTTP_REFERER', 'HTTP_USER_AGENT', 'REMOTE_ADDR', |
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'REMOTE_PORT', 'REQUEST_METHOD', 'REQUEST_URI', 'SERVER_PROTOCOL'): |
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163 |
info[k.split('_')[-1].lower()] = env[k] if env.has_key(k) else 'n/a' |
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164 |
|
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165 |
send_error_page() |
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166 |
send_mail(info) |
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167 |
|
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def enable(filename=None): |
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169 |
if filename is not None: |
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170 |
load_config(filename) |
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171 |
sys.excepthook = mailtbhook |